Tech
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Tech
Plastic fantastic seals in speeding projectiles
Layered nanomaterial shows how bulletproof polymers wrap around penetrating particles.
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Tech
Degradable devices vanish after use
Technique combines silicon, magnesium and silk for medical implants, transistors and digital cameras that can melt away.
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Tech
Facebook peer pressure gets out the vote
People were more likely to take part in the November 2010 election when they were told that their online friends already had.
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Tech
When Networks Network
Once studied solo, systems display surprising behavior when they interact.
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Tech
Unmixing oil and water
A new filter that separates the two substances only using gravity could help clean oil spills.
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Tech
Chameleon-like robot can change hue
Dye-filled microchannels help machine blend in, or stick out.
By Meghan Rosen -
Tech
Camera hack can spot cleaned-up crimes
Exploiting a standard tool of art conservation can help police find painted-over bloodstains.
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Tech
FDA bans BPA in baby bottles, cups
From now on, U.S. manufacturers may no longer produce polycarbonate baby bottles and sippy cups (for toddlers) if the clear plastic had been manufactured from bisphenol A, a hormone-mimicking compound. Long-awaited, the announcement is anything but a bold gesture. The Obama administration decided to lock this barn door after the cow had died.
By Janet Raloff -
Tech
Interactive map like GPS for Roman Empire
A simulation calculates the cost in days and dinarii of shipping goods throughout the classical world.
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Tech
The descent of music
Using an evolutionary process, researchers create pleasing tunes out of grating noise.